Home / 90,165,708.45-124,428,917.39-48,912,600.82

Finding the Fourth Proportional to 90,165,708.45, 124,428,917.39 and 48,912,600.82

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Solution

The fourth proportional to 90,165,708.45, 124,428,917.39 and 48,912,600.82 is: 67,499,519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,165,708.45 : 124,428,917.39 = 48,912,600.82 : x
  2. Step 2: Convert to fraction form
    90,165,708.45/124,428,917.39 = 48,912,600.82/x
  3. Step 3: Cross multiply
    90,165,708.45x = 124,428,917.39 × 48,912,600.82
  4. Step 4: Simplify right side
    90,165,708.45x = 6,086,141,966,761,826
  5. Step 5: Solve for x
    x = 6,086,141,966,761,826/90,165,708.45
  6. Step 6: Final answer
    x = 67,499,519.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.